Brake-backing plate



J. L.. PRICE BRAKE BACKING ,PLATE Feb. 9 1925. 1,572,680

Filed August 1' 1925 INVENTOR JACOB L. PRICE ATTORNEY Patented Feb. 9, 1926.

UNITED STATES JACOB L. PRICE,

PATENT OFFICE,

OFlGHICAGOyILIJiNOIS; ASSIG-NOR T BENDIK BRAKE COMPANYQOF CHICAGO, ILLINOIS, A CORPQRATION OF ILLINQIS.

nuns-momma 'zem'rn.

lpplicatlon med August 17, 1925. sensin 50,697.

To all whom it may coneem: Be itlmown that I, JACGB L. Baron. e cit zen of the UnitedyStates', residing in Cllb @120, in the county of Cook and State of Illinois, have invented a certa n new end useful Im rovementx in Brake-Backing Plates, of v ieh the following is a specificathan. This invention relates to brakes; end is illustrated as embodied-in n backing plate for an automobile brake An object of the invention isitoiqbjvia te drumming. of the baekingi plateiby providing. plugsv of different materig1arranged to prevent.the buildin "oscillations in the plate Prefers 1y thfl mnteriel is cast or otherwise secorcd in openings unched in the backing late hetweefi the, rake anchor and the rake-app i-ifg-meens --i. e. at the points of greatest vi ration in drumming.

The advantages of this arrangement be .e'ppare'nt from the following-description T of the illustrative embodiment. of the invention shown in the accompanying, drawing, in which: l i l i Fig. 1 is 3/ front elevation ofthe brake booking plate;-and Fig. 2 is a'se'ctionon 'the. line 2-2 of Fig. 1.

so While'the principle isi useful with one;

l3%p6S of brakes,lthe.partioular hacking plate 5 0 W11 is intended for use'with e two-anchor ,three-shoe brake such as is illustratecl' in ap plication No. 24,426, :filed April 20,1925.

The plate .10 maybe fof anydesirediorm,

according to the broke with which it. .is to he used. .It is provided with a poi-ref open- I tings 12 for the brake anchors, and zin openiug 14 for-the brake-applying means, which 49 are clamped to the plate and therefore hold it against vibration at those points.-

will

Qmeens, and having M rtvv een the anchoring means and brake apf. plying means which are plugged with ma- Betiveen points 12-a'nd 1 1 are erren ed openings filled with plugs 16 of material I iffere'nt from the metal of the plate,--'-that is, material having difierent physienl oharae'" teristics, such as lead, or a, paper pulp oom- 1 position, or other material which will not vibrate in conso-nance with the plate, and

'wliich will therefore da'mp out the Vibrw 'tions without permitting them to build up means and brekeapplying means, and havjing openings at a point between the anchoring means andhrake-npplying means which are plugged, Withunaterialhaving difi'erent physical characteristics, to Preventdrummmg. A

2. A- backing plate for a brake arranged tohe engaged by anchoring means and having'openiugs at a point spaced from the'an- *choring' means and which are plugged with ;material having different physical cheraew 'm tenstics, to prevent drumming.

A backing plate for a brake hevin'g openings at spaced pointsfor the passage of anchoring means and brake-applying openings at a po1nt be-- tel ial having different physical charactetwi lstics, to prevent drumming.

In testimony whereof, I'l avehereunto signed my name. q

' JACOB L..PBICE. 

